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Impact of shipwrecks on the morphology of world coasts: A Review

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Title Impact of shipwrecks on the morphology of world coasts: A Review
 
Creator Mascarenhas, Antonio
Murali, R. Mani
 
Subject Shipwrecks
Coastline
Satellite images
MV River Princess
Goa
 
Description 1217-1223
Role
of the grounded ship MV River Princess in activating erosion along the Candolim
to Sinquerim coast of Goa, India,
is evaluated. Beach and dune system was severely affected, as over a kilometre
long strip of coastal sand dunes were destroyed. Results suggest that the wreck
acted like an offshore breakwater, trapped sediment around the site, and
created a sediment deficit with consequent erosion south of the site. Coastal
retreat occurred at a rate of 7 to 8 m/year, over a period of 10 - 12 years,
along 1.5 km of sea front. A comparison of the impact of similar grounded
vessels around the globe confirms that shipwrecks in shallow seas have the
potential of drastically altering the face of the coast, often within a short
time. Major factors that determine the fate of the coast subsequent to a
shipwreck are: distance of the wreck from the shore, the depth of water, the
span of time when the wreck remains aground, the orientation of the vessel with
respect to the shore, the direction and intensity of prevailing winds, the
consequent wave regime, the resultant littoral currents and the disruption of
sediment transfer along the shore. The kind of short-term coastal erosion
witnessed in Goa as a consequence of a
marooned vessel appears unprecedented in comparison to similar examples found
worldwide.
 
Date 2016-06-26T19:55:17Z
2016-06-26T19:55:17Z
2014-07
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/34427
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.43(7) [July 2014]